bumgardner



1956 c. Y. BUMGARDNER LIFTING DEVICE FOR CARD LICKER-IN ROLLS 3 Sheets-Sheet 1 Filed Sept. 21, 1954 b 2 z a .R m MW M M T R a N 1 W Nm 7 8 6 K m F W I 8 2 Z @1 a I 6 Z 2 m).

e 8 ru 3 1 1 W H 2 z United States Patent LIFTING DEVICE FOR CARD LICKER-IN' ROLLS Clifton Y. Bumgardner, Lancaster, S. C., assignor to The Springs Cotton Mills, a corporation of South Carolina Application September 21, 1954', Serial No. 457,513

Claims. (Cl. 254-6) This invention relates to lifting devices and more particularly to a device of this sort arranged for installing and removing card licker-in rolls at the feed end of a card frame.

The licker-in rolls in cards have to be removed vertically for maintenance and repair. These rolls are quite heavy and are covered with a toothed surface so that their installation and removal involves considerable difliculty. Also, cards are commonly installed in rather closely spaced relation and are fitted with numerous open belts and pulleys which present a substantial safety hazard in handling licker-in rolls during installation and removal.

The device of the present invention provides means for allowing one personto handle a licker-in roll easily during installation and removal and can be operated by this person from the feed end of the card without any necessity for standing between adjacent cards and thereby substantially facilitates and reduces the hazards of the handling of card licker-in rolls.

The foregoing and other features of the present invention are described in further detail below in connection with the accompanying drawings, in which:

Fig. l is an end elevation of a lifting device embodying the present invention;

Fig. 2 is a side elevation of the device as seen from the right in Fig. 1;

Fig. 3 is a further side elevation opposite to Fig. 2, and showing the arrangement of the removable block mounts for alternatively supporting a licker-in roll being handled on the lifting device;

Fig. 4 is a perspective view of one of the lifting yoke elements;

Fig. 5 is a perspective view of one of the removable block mounts; and

Fig. 6 is a plan view of the lifting device indicating the manner in which it may be telescoped at the feed end of a card for installing or removing a licker-in roll.

Referring now in detail to the drawings, the embodiment of the present invention illustrated comprises an opensided rectangular frame structure having a side section 10 formed in a length exceeding the width of the feed end of a card frame (as indicated by broken lines at C in Fig. 6) and end sections 12 connected adjacent each end of the side section It) in right angular relation thereto and formed in a length sufiicient to reach beneath the axis of a licker-in roll (as indicated in broken lines at R in Figs. 1, 2, 3 and 6) when the frame structure of the lifting device is telescoped in surrounding relation at the feed end of the card frame C.

Each of the end sections 12 is formed with a vertical guideway at 14 at a position alignable beneath the axis of the licker-in roll C, and a pair of yoke members 16 having identical shank portions 18 formed as lifting racks are slidably disposed in the guideways 14. The yoke members 16 are further formed with respective head portions 20 and 22 shaped for lifting support at the input and output pulleys P and P for the licker-in roll R, these lifting heads 20 and 22 being arranged with suitably differing curvatures to correspond with the differing radius of the input and output pulleys P and P.

The yokev members 16 are actuated from the lifting racks at the shank portions 18 thereof through rack gears 24 supported on each of the end sections 12, and a worm and worm wheel drive 26 is supported on the side section 10 for driving connection from an operating handle 28 through a side section cross shaft 30, beveled gear pairs 32, and end section shafts 34. Accordingly, the yoke members 16 can be readily controlled from the operating handle 28 by one person. The frame structure formed by the side section 10 and end sections 12 is suitably mounted on casters 36 so that it may be readily moved in telescoping relation with respect to the feed end of a card frame C as indicated in Fig. 6 for positioning the yoke member head portions 20 and 22 in alignment with the. licker-in pulleys P and P for lifting the licker-in roll R clear of the card frame C or setting it in place as desired. In this connection, it should be noted that the yoke member shank portions 18 are removable upwardly from the end section guideways 14 merely upon disengagement from the rack gears 24, and that as these shank portions 18 are identical the yoke members 16 are interchangeable between the guideways 14 for handling either hand of licker-in. roll R (i. e., a roll R having the input pulley P at either the right or left hand end thereof).

It should also be noted that the previously described vertical guideways 14 for the yoke members 16 are arranged exteriorly on the end sections 12, and that block mounts 38 are removably arranged interiorly of the end sections 12 in vertical alignment with the guideways 14 for alternatively supporting a licker-in roll R at the roll body thereof, so that the pulleys P and P may be removed from the licker-in roll shaft whenever necessary while the roll R is being handled on the lifting device of the present invention. These block mounts 33 are hinged for shifting a lowered inactive position and an elevated roll supporting position, as indicated in Fig. 3, and the means provided for removably supporting the block mounts 38 comprises mounting brackets formed with upper horizontal arm portions 44 and bracing arm portions 42 depending angularly therefrom, with the free extending ends of these arm portions removably attached to the and sections 12, as at an upper anchor bracket 44 and a lower locating pin 46. The block mounts 38 are suitably hinged on the horizontal arm portions 41 adjacent the bracing arm portions 42 so as to swing inwardly of the end sections 12 to their lowered inactive position, and to stand on the horizontal arm portions 4i? at their elevated roll supporting position at which the support of a licker-in roll can be transferred readily thereto from the yoke members 16 (see Fig. 3).

The present invention has been described in detail above for purposes of illustration only and is not intended to be limited by this description or otherwise except as defined in the appended claims.

1 claim:

l. A lifting device for installing and removing card licker-in rolls, said device comprising an open-sided rectangular frame structure having a side section formed in a length exceeding the width of the feed end of a card frame and end sections connected adjacent each end of said side section in right angular relation thereto and formed in a length sutficient to reach beneath the licker-in roll axis when said frame structure is disposed in surrounding relation at said card frame feed end, said end sections being formed with vertical guideways alignable beneath said licker-in roll axis when said frame structure is disposed in said surrounding relation, a pair of yoke members having respective head portion shaped selectively for lifting support at respective portions of said licker-in roll extending axially beyond said card frame feed end at each side thereof and having identical shank portions shaped for sliding disposition in said end section guideways and formed as lifting racks, rack gears supported on each of said end sections for engagement with the racks formed by said yoke shank portions, and a Worm and worm wheel supported on said side section for driving both of said rack gears, the shank portions of said yoke members being retained vertically in said end section guideways only by said rack gears and being interchangeable between said guideways for use in installing or removing either hand of licker-in roll.

2. A lifting device for installing and removing card licker-in rolls at the feed end of a card frame, said device being arranged for lifting support of said licker-in rolls at the input and output pulleys carried axially thereon at positions located respectively beyond the opposite sides of said card frame, and said device comprising an open-sided rectangular frame structure having a side section with end sections joined adjacent each end thereof in right angular relation for telescoping around said card frame feed end, said end sections extending from said side sections sufiiciently to reach beneath the axial position of a licker-in roll on said card frame when said frame structure is telescoped therewith and having vertical guideways formed therein for alignment beneath said axial position, a pair of yoke members having respective head portions shaped selectively for lifting support respectively at said input and output pulleys and having shank portions shaped for sliding disposition in said end section guideways with identical lifting racks formed therein, rack gears supported on each of said end sections for engagement with said lifting racks, and a worm and worm wheel supported on said side sec tion and connected in driving relation with both of said rack gears, the shank portions of said yoke members he- 4 ing removable upwardly from said guideways upon disengagement of the lifting racks thereof from said rack gears and being interchangeable between said guideways for use in installing or removing either hand of licker-in roll.

3. A lifting device as defined in claim 2 and further characterized in that casters are arranged adjacent the four corners of said open-sided rectangular frame structure.

4. A lifting device as defined in claim 2 and further characterized in that said guideways are arranged exteriorly on said frame structure end sections, and block mounts are removably arranged interiorly of said end sections and in vertical alignment with said guideways for alternatively supporting a licker-in roll at the roll body thereof, said block mounts comprising mounting brackets having block members hinged thereon for shifting between a lowered inactive position and an elevated roll supporting position at which the support of a licker-in roll can be transferred thereto from said yoke members. i

5. A lifting device as defined in claim 4 and further characterized in that said mounting brackets are formed with an upper horizontal arm portion and a bracing arm portion depending angularly therefrom, the free extending ends of said arm portions are removably attached to said end sections, and said block members are hinged on said horizontal arm portions adjacent said bracing arm portions.

References Cited in the file of this patent UNITED STATES PATENTS 256,363 Nourse Apr. 11, 1882 1,065,161 Metz June 17, 1913 2,266,446 Sluyter Dec. 16, 1941 1 ere 

